Set Longitude/Latitude in Aperture?

I just got Aperture 1.5 and am reorganizing my library. I thought it would be neat if I could manually enter some GPS data into some of my pictures (since I dont have a way to do it automatically). Is there anyway I can do this? I see the field for it but obviously it wont let me edit it.

You cannot set it in Aperture. You need to add it to the images before importing to Aperture. You can use Geotagger for JPEGs to set this from Google Earth. I've not found a good way to set this in RAW images.

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